how to choose right dc gear motor

The selection of geared motors should be based on the principles of economy, practicability, and safety, and select the correct type, and power according to the performance requirements of the product to ensure the normal and smooth production of the product.
1. Geared motor size
When choosing gear motors, always require the smaller the size as possible. In fact, this is a misunderstanding. In product design, as much as possible to reserve a larger product assembly space to better match the appropriate gearbox.
2. the electrical performance of the geared motor
(1) Rated torque/speed: In many cases, customers do not know the real torque required by their products, but want to maximize the torque. In fact, the torque can be measured by the following simple method and choose an approximate For geared motors, a current and a voltage regulating power supply are connected in series in the circuit, and then the speed and torque are controlled by adjusting the voltage. By comparing this data with the graph, the actual torque and speed can be accurately known.
(2) The geared motor meets the specifications,
This is the most basic and the most important, because customers mainly expand foreign markets, and each batch of goods will be full inspected. The motor is the source of power and the core of power. Each batch of our products is fully inspected and meets the specifications before shipment.
3. Geared motor noise
We usually say the noise is the mechanical noise of gears, which is the sound that can be heard by the ear. The gearbox was found to be louder and the noise was requested to be improved. Repeated sample delivery still could not solve the problem. In fact, this kind of noise is not produced by the product itself, but caused by a variety of reasons, such as vibration caused by excessively high motor rotation speed, resonance formed by the rigid connection between geared motors and machinery and equipment, and drag loads. Noise caused by eccentricity. The use of plastic gears has lower noise than gold brushed gears, the use of helical gears and spur gears has lower noise, the metal worm gear structure has greater noise, and the selection of planetary gears has greater noise.
4.the choice of speed and torque
These two points must also meet the conditions. The vehicle speed, rotation, or torque cannot be separated because the two are related. The higher the speed, the lower the torque, and the lower the speed, the opposite is true. Whether it is overloaded or not depends on the torque. It is necessary to know that overloading will reduce the service life of the reducer.